Perhaps coming up with a list of things you like to do and randomizing what happens to you and how long you have to do it with a randomized wheel spin picker (there's some that you can enter a random list of things and it'll randomly pick one). You can the wheel twice with a list of random duration.

However I just met another guy online who shared a lot of interest with some of the stuff I do. For me it was a lot easier to meet and talk to someone online, I was participating in some prison-bdsm roleplay and we started chatting, it evolved into us sharing some kinks and agreeing to start a D/S relationship despite the fact that he lives in Europe and I in NA.

All of the things I do is entirely on my own, the exception is that he's telling me what to do, despite the fact that it's essentially self-bondage. I find the fact that I'm not entirely deciding on my own what I do and for how long I do it to be quite the enhancement.

I see severals things I'd try if I was in your position:

1. Causally try meeting people in online communities and befriending people with similar kink, see if you can get them to act as a remote Dom. I believe the key would be just to get involved in activities in your community and just rolling with it. Unless you have some serious social anxiety, it shouldn't be too difficult to find someone that you'll just get along with. But this isn't the reason why you came. So, moving on.
2. Perhaps coming up with a list of things you like to do and randomizing what happens to you and how long you have to do it with a randomized wheel spin picker (there's some free ones online that you can enter a random list of things into it and it'll randomly pick one). You can spin the wheel twice with a list of random duration.
3. If you like locks, the chastity community uses a lot of tools like emlalock.com to manage pass codes to lock boxes. A chastity wearer would take a picture of a preset pass-code and uploaded it to the site without looking at it, lock all the keys into a lock box and start a session, after the preset time has passed, the pass-code would be revealed to the wearer and the code is revealed, allowing the wearer to access the lock box and the keys. You can use this principle for any keys I suppose.

If that wasn't very helpful, I completely understand. If I had any questions for you, it would be what exactly are you looking to enhance? A sense of peril? Helplessness?